Initial release

tools/pjarczak_bambu_runtime/rootfs/build_windows_wsl_rootfs.ps1

@@ -0,0 +1,75 @@
+param(
+    [string]$OutputTar = "",
+    [string]$BaseImage = "ubuntu:24.04",
+    [switch]$Force
+)
+
+$ErrorActionPreference = 'Stop'
+
+function Get-ScriptDir {
+    if (-not [string]::IsNullOrWhiteSpace($PSScriptRoot)) {
+        return $PSScriptRoot
+    }
+    if (-not [string]::IsNullOrWhiteSpace($PSCommandPath)) {
+        return (Split-Path -Parent $PSCommandPath)
+    }
+    if ($MyInvocation.MyCommand -and -not [string]::IsNullOrWhiteSpace($MyInvocation.MyCommand.Path)) {
+        return (Split-Path -Parent $MyInvocation.MyCommand.Path)
+    }
+    return (Get-Location).Path
+}
+
+$scriptDir = Get-ScriptDir
+if ([string]::IsNullOrWhiteSpace($OutputTar)) {
+    $OutputTar = Join-Path $scriptDir 'windows-wsl2-rootfs.tar'
+}
+$OutputTar = [System.IO.Path]::GetFullPath($OutputTar)
+
+if ((Test-Path $OutputTar) -and -not $Force) {
+    Write-Host "Rootfs already exists: $OutputTar"
+    exit 0
+}
+
+$docker = Get-Command docker -ErrorAction SilentlyContinue
+if (-not $docker) {
+    throw 'docker not found. Install Docker Desktop or set PJARCZAK_WSL_ROOTFS_TAR to an existing rootfs tar.'
+}
+
+New-Item -ItemType Directory -Force -Path (Split-Path -Parent $OutputTar) | Out-Null
+
+$containerName = "pjarczak-bambu-rootfs-" + [guid]::NewGuid().ToString('N')
+try {
+    & docker pull --platform linux/amd64 $BaseImage
+    if ($LASTEXITCODE -ne 0) {
+        throw "docker pull failed for image: $BaseImage"
+    }
+
+    & docker create --platform linux/amd64 --name $containerName $BaseImage /bin/sh -lc 'exit 0'
+    if ($LASTEXITCODE -ne 0) {
+        throw "docker create failed for image: $BaseImage"
+    }
+
+    if (Test-Path $OutputTar) {
+        Remove-Item -Force $OutputTar
+    }
+
+    $exportProcess = Start-Process -FilePath docker -ArgumentList @('export', $containerName, '-o', $OutputTar) -NoNewWindow -Wait -PassThru
+    if ($exportProcess.ExitCode -ne 0) {
+        throw 'docker export failed'
+    }
+
+    if (!(Test-Path $OutputTar)) {
+        throw "rootfs tar was not created: $OutputTar"
+    }
+
+    $size = (Get-Item $OutputTar).Length
+    if ($size -le 0) {
+        throw "rootfs tar is empty: $OutputTar"
+    }
+
+    Write-Host "WSL rootfs created:"
+    Write-Host $OutputTar
+}
+finally {
+    & docker rm -f $containerName 2>$null | Out-Null
+}